ci.yaml

name: ci

on:
  pull_request:
    branches: 
      - "*"

env:
  CARGO_TERM_COLOR: always

jobs:
  build:
    runs-on: ubuntu-latest
    outputs:
      cache-key: ${{ steps.cargo-cache.outputs.cache-primary-key }}
    steps:
      - uses: actions/checkout@v3
      - uses: actions-rs/toolchain@v1
        with:
          toolchain: stable
          override: true
      - uses: arduino/setup-protoc@v2
      - name: Restore Cargo Cache
        id: cargo-cache
        uses: actions/cache/restore@v3
        with:
          path: |
            ~/.cargo/bin/
            ~/.cargo/registry/index/
            ~/.cargo/registry/cache/
            ~/.cargo/git/db/
            target/
          # We can do this now because we use specific verison and update with Dependabot
          # but if we make the deps any less specifc, we'll have to fix
          key: ${{ runner.os }}-deps-${{ hashFiles('**/Cargo.toml') }}-${{ hashFiles('**/*.rs') }}
          # start from the previous set of cached dependencies
          restore-keys: |
            ${{ runner.os }}-deps-${{ hashFiles('**/Cargo.toml') }}-
            ${{ runner.os }}-deps-
      - name: Check
        run: cargo check --workspace --tests --examples --benches
      - name: Build
        run: cargo build --workspace --tests --examples --benches
        # Always update the cache 
      - name: Cleanup
        run: |
          gh extension install actions/gh-actions-cache

          REPO=${{ github.repository }}
          BRANCH="refs/pull/${{ github.event.pull_request.number }}/merge"

          echo "Fetching list of cache key"
          cacheKeysForPR=$(gh actions-cache list -R $REPO -B $BRANCH | cut -f 1 )

          ## Setting this to not fail the workflow while deleting cache keys.
          set +e
          echo "Deleting caches..."
          for cacheKey in $cacheKeysForPR
          do
              gh actions-cache delete $cacheKey -R $REPO -B $BRANCH --confirm
          done
          echo "Done"
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      - name: Save Cargo Cache
        uses: actions/cache/save@v3
        with:
          path: |
            ~/.cargo/bin/
            ~/.cargo/registry/index/
            ~/.cargo/registry/cache/
            ~/.cargo/git/db/
            target/
          key: ${{ steps.cargo-cache.outputs.cache-primary-key }}

  lint:
    needs: build
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v3
      - uses: actions-rs/toolchain@v1
        with:
          toolchain: stable
          override: true
          components: rustfmt, clippy
      - uses: arduino/setup-protoc@v2
      - name: Restore Check Deps
        id: cache-build-deps-restore
        uses: actions/cache/restore@v3
        with:
          path: |
            ~/.cargo/bin/
            ~/.cargo/registry/index/
            ~/.cargo/registry/cache/
            ~/.cargo/git/db/
            target/
          key: ${{ needs.build.outputs.cache-key }}
      - name: Format
        run: cargo fmt -- --check
      - name: Clippy
        run: cargo clippy -- -D warnings

  test:
    needs: build
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v3
      - uses: actions-rs/toolchain@v1
        with:
          toolchain: stable
          override: true
      - uses: arduino/setup-protoc@v2
      - name: Restore Check Deps
        id: cache-build-deps-restore
        uses: actions/cache/restore@v3
        with:
          path: |
            ~/.cargo/bin/
            ~/.cargo/registry/index/
            ~/.cargo/registry/cache/
            ~/.cargo/git/db/
            target/
          key: ${{ needs.build.outputs.cache-key }}
      - name: Run tests
        run: cargo test --verbose

  examples:
    needs: build
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: actions-rs/toolchain@v1
        with:
          toolchain: stable
          override: true
      - uses: arduino/setup-protoc@v2
      - name: Restore Check Deps
        id: cache-build-deps-restore
        uses: actions/cache/restore@v3
        with:
          path: |
            ~/.cargo/bin/
            ~/.cargo/registry/index/
            ~/.cargo/registry/cache/
            ~/.cargo/git/db/
            target/
          key: ${{ needs.build.outputs.cache-key }}
        # benchmarks were not being done in --release mode, we can enable this again later
        # - name: Run benchmark example
        #   run: RUST_BACKTRACE=1 cargo run --example benchmark -- --nbatch 100 --batch-size 1000
      - name: Run rev example
        run: RUST_BACKTRACE=1 cargo run --example rev

  docs:
    needs: build
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: actions-rs/toolchain@v1
        with:
          toolchain: stable
          override: true
      - uses: arduino/setup-protoc@v2
      - name: Restore Check Deps
        id: cache-build-deps-restore
        uses: actions/cache/restore@v3
        with:
          path: |
            ~/.cargo/bin/
            ~/.cargo/registry/index/
            ~/.cargo/registry/cache/
            ~/.cargo/git/db/
            target/
          key: ${{ needs.build.outputs.cache-key }}
      - run: RUSTDOCFLAGS="-D warnings" cargo doc --all --document-private-items --no-deps
      - run: |
          git clean -f docs
          echo "<meta http-equiv=\"refresh\" content=\"0; url=firewood\">" > target/doc/index.html
          echo "copying documentation to doc..."
          cp -r target/doc ./docs